Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 66
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
142
Te
52
0
141.94908
0
150 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
144
I
53
0
143.94999
-1
300 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
146
Xe
54
0
145.94775
0
146 Millisekunden (ms)
β
-
93.1%
nβ
-
6.9%
148
Cs
55
0
147.949221
-1
146 Millisekunden (ms)
β
-
74.9%
nβ
-
25.1%
150
Ba
56
0
149.94568
0
300 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
152
La
57
0
151.94625
unbekannt
200 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
154
Ce
58
0
153.94342
0
300 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
156
Pr
59
0
155.94427
+3
500 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
158
Nd
60
0
157.9416
0
700 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
160
Pm
61
0
159.942991
unbekannt
2 Sekunden
β
-
>0%
nβ
-
>0%
162
Sm
62
0
161.94122
0
2.4 Sekunden
β
-
100%
164
Eu
63
0
163.942991
unbekannt
4.2 Sekunden
β
-
100%
166
Gd
64
0
165.9416
0
4.8 Sekunden
β
-
100%
168
Tb
65
0
167.94364
-4
8.2 Sekunden
β
-
100%
170
Dy
66
0
169.94239
0
30 Sekunden
β
-
100%
172
Ho
67
0
171.94482
+6
25 Sekunden
β
-
100%
174
Er
68
0
173.94423
0
3 Minuten 12 Sekunden
β
-
100%
176
Tm
69
0
175.946995
+4
1 Minuten 54 Sekunden
β
-
100%
178
Yb
70
0
177.946647
0
1 Stunden 14 Minuten
β
-
100%
180
Lu
71
0
179.949881
+5
5 Minuten 42 Sekunden
β
-
100%
180m
Lu
71
0.0139
179.949896
-3
1 Sekunden
it
100%
180m
Lu
71
0.6241
179.950551
-9
1 Mikrosekunden (μs)
it
100%
182
Hf
72
0
181.950554
0
8.9 Millionen Jahre
β
-
100%
182m
Hf
72
1.173
181.951813
-8
1 Stunden 1 Minuten 30 Sekunden
β
-
100%
184
Ta
73
0
183.954008
-5
8 Stunden 41 Minuten 60 Sekunden
β
-
100%
186
W
74
0
185.954364
0
28.43
6.5 Trillionen Jahre
α
100%
186m
W
74
1.5172
185.955993
-7
18 Mikrosekunden (μs)
it
100%
186m
W
74
3.5428
185.958168
+16
5 Millisekunden (ms)
it
100%
188
Re
75
0
187.958114
-1
17 Stunden 10.800000000003 Sekunden
β
-
100%
188m
Re
75
0.1721
187.958299
-6
18 Minuten 35.4 Sekunden
it
100%
190
Os
76
0
189.958447
0
26.36
stabil
190m
Os
76
1.7054
189.960278
-10
9 Minuten 54 Sekunden
it
100%
192
Ir
77
0
191.962605
+4
73 Tage 19 Stunden
β
-
95.13%
ε
4.87%
192m
Ir
77
0.0567
191.962666
-1
1 Minuten 27 Sekunden
it
99.98%
β
-
0.02%
192m
Ir
77
0.1681
191.962786
-11
241 Jahre
it
100%
194
Pt
78
0
193.96268
0
32.967
stabil
196
Au
79
0
195.96657
-2
6 Tage 4 Stunden 20.160000000033 Sekunden
ε
93%
β
-
7%
196m
Au
79
0.0847
195.966661
+5
8.1 Sekunden
it
100%
196m
Au
79
0.5957
195.967209
-12
9 Stunden 36 Minuten
it
100%
198
Hg
80
0
197.966769
0
9.97
stabil
200
Tl
81
0
199.970963
-2
1 Tage 2 Stunden 6 Minuten
ε
100%
200m
Tl
81
0.7536
199.971772
+7
34 Millisekunden (ms)
it
100%
200m
Tl
81
0.762
199.971781
+5
330 Nanosekunden (ns)
it
100%
202
Pb
82
0
201.97216
0
52500 Jahre
ε
100%
202m
Pb
82
2.1699
201.974489
-9
3 Stunden 32 Minuten 24 Sekunden
it
90.5%
e
9.5%
202m
Pb
82
4.1429
201.976607
+16
110 Nanosekunden (ns)
it
100%
202m
Pb
82
5.3459
201.977899
-19
107 Nanosekunden (ns)
it
100%
204
Bi
83
0
203.977813
+6
11 Stunden 13 Minuten 12 Sekunden
ε
100%
204m
Bi
83
0.8055
203.978677
-10
13 Millisekunden (ms)
it
100%
204m
Bi
83
2.8334
203.980855
+17
1.1 Millisekunden (ms)
it
100%
206
Po
84
0
205.980482
0
8 Tage 19 Stunden 12 Minuten
ε
94.55%
α
5.45%
206m
Po
84
1.5859
205.982184
+8
222 Nanosekunden (ns)
it
100%
206m
Po
84
2.2622
205.98291
-9
1.1 Mikrosekunden (μs)
it
100%
208
At
85
0
207.98659
+6
1 Stunden 37 Minuten 48 Sekunden
ε
99.45%
α
0.55%
210
Rn
86
0
209.989696
0
2 Stunden 24 Minuten
α
96%
ε
4%
210m
Rn
86
1.69
209.991511
+8
6.44 Sekunden
it
100%
210m
Rn
86
3.837
209.993815
-17
1.1 Mikrosekunden (μs)
it
100%
210m
Rn
86
6.493
209.996667
+22
1 Mikrosekunden (μs)
it
100%
212
Fr
87
0
211.996203
+5
20 Minuten
ε
57%
α
43%
214
Ra
88
0
214.000107
0
2.46 Sekunden
α
99.94%
ε
0.06%
214m
Ra
88
1.8652
214.00211
+8
67.3 Mikrosekunden (μs)
it
99.91%
α
0.09%
216
Ac
89
0
216.008719
-1
440 Mikrosekunden (μs)
α
100%
216m
Ac
89
0.048
216.008771
-9
441 Mikrosekunden (μs)
α
100%
218
Th
90
0
218.013284
0
117 Nanosekunden (ns)
α
100%
220
Pa
91
0
220.021875
-1
780 Nanosekunden (ns)
α
100%
ε
3e-7%
222
U
92
0
222.026086
0
1 Mikrosekunden (μs)
α
100%